Provides effective horn fly and lice control for cattle over 600 pounds using soft gel capsules designed exclusively for the VetGun system. Each capsule contains 10 mL of lambda cyhalothrin with piperonyl butoxide and bursts on contact to deliver insecticide directly to the animal, leaving a visible fluorescent orange mark to confirm application. One capsule treats one animal and provides up to four weeks of effective horn fly control. Applied from 15 to 30 feet away, this low stress treatment allows a single person to treat cattle from horseback, a pickup, an ATV, or on foot, reducing labor while giving producers greater flexibility and control.